System and method for query authorization and response generation using machine learning

ABSTRACT

Systems, methods, and computer-readable storage media for responding to a query using a neural network and natural language processing. If necessary, the system can request disambiguation, then parse the query using a trained machine-learning classifier, resulting in at least one of an identified subject or an identified domain of the text query. The system can determine if the user is authorized to retrieve answers to the query and, if so, retrieve factual data associated with the query. The system can then retrieve a response template, and fill in the template with the retrieved facts. The system can then determine, by executing a machine comprehension model on the filled response template, a probable readability token, portion of text, of at least a portion of the filled response template and, upon identifying that the probable readability is above a threshold, reply to the text query with the at least a portion of the filled response template.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.16/864,931, filed on May 1, 2020, the content of which is herebyincorporated by reference in its entirety.

BACKGROUND 1. Technical Field

The present disclosure relates to automatic query authorization andresponse generation, and more specifically to determining if a usermaking a query is authorized to receive a response to the query, usingnatural language processing to parse the query, and using machinelearning to identify the probabilities that data collected in responseto the query is correct.

2. Introduction

Natural language processing algorithms are used by computer systems toparse and interpret text. For example, natural language processingalgorithms can receive text obtained from a speech-to-text conversion,parse the text into parts of speech such as adjectives, nouns, andverbs, then identify based on those adjectives, nouns, and verbs theobjective of the text. As natural language processing tools become morecommonly deployed, users trust in the results of those natural languageprocessing tools increases.

However, when a query is made which has privacy requirements, securityrequirements, and/or other restrictions, the results of the naturallanguage processing need to be sufficiently flexible and scalable toprovide a satisfactory answer or response. Moreover, there is anexpectation that chatbots and other query systems relying on naturallanguage processing have very short response times (e.g., “real time”).One exemplary technical problem which exists with real time naturallanguage processing of queries on restricted content is how toefficiently authorize retrieval of query information without delayingthe results being provided without imposing performance restraints onthe processors and other computer components generating the response.This problem can be compounded by an inability to store private orsecure data in ways which could compromise the integrity of the data(meaning that the data cannot be stored within intermediate, moreefficient databases).

SUMMARY

Additional features and advantages of the disclosure will be set forthin the description which follows, and in part will be obvious from thedescription, or can be learned by practice of the herein disclosedprinciples. The features and advantages of the disclosure can berealized and obtained by means of the instruments and combinationsparticularly pointed out in the appended claims. These and otherfeatures of the disclosure will become more fully apparent from thefollowing description and appended claims, or can be learned by thepractice of the principles set forth herein.

Aspects of the disclosure include a system and method comprisingidentifying, at a processor, an identity of a user; receiving a textquery of the user; identifying, via the processor executing aclassifier, at least one named entity within the text query; retrieving,via the processor from a personnel database, a plurality of identitiesassociated with the at least one named entity; receiving, from the user,a disambiguation input identifying a selected entity from the pluralityof identities; parsing, via the processor executing a trainedmachine-learning classifier, the text query, resulting in at least oneof an identified subject or an identified domain of the text query;authorizing the user, via the processor and based on the identity of theuser and the at least one of the identified subject or the identifieddomain, to access a restricted database containing restricted dataassociated with the at least one of the identified subject or theidentified domain; retrieving, via the processor, a response templatespecific to the at least one of the identified subject or the identifieddomain; filling, via the processor accessing the restricted database,the response template with at least a portion of the restricted dataassociated with the at least one of the identified subject or theidentified domain, resulting in a filled response template; determining,via the processor executing a machine comprehension model on the filledresponse template, a probable readability token of at least a portion ofthe filled response template; and upon identifying that the probablereadability is above a threshold, replying to the text query with the atleast a portion of the filled response template.

In another aspect, the classifier is a neural network is pretrained toidentify proper nouns within the text query.

In another aspect, the trained machine-learning classifier iterativelymodifies code executed by the processor upon receiving a thresholdnumber of text queries.

In another aspect, the trained machine-learning classifier uses logisticregression between iterations to identify which aspects of the code tomodify.

In another aspect, the response template includes an identifierassociated with the portion of the restricted data, and furthercomprising matching the identifier with a key database to retrieve datacorresponding to the identifier and filling the response template withthe data.

In another aspect, removing portions of the filled response templatewhich are not associated with the at least one of the identified subjector the identified domain, resulting in the at least a portion of thefilled response template.

In another aspect, the text query of the user is received as a speechquery; and converted, by the processor executing a speech-to-textconversion, the speech query into the text query.

In another aspect, the at least one named entity within the text querycomprises at least one of a legal formatted name, a given name, a familyname, and a nickname.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates an example of query entry;

FIG. 2 illustrates an example algorithm for responding to a text query;

FIG. 3 illustrates an example of a query response containing a map;

FIG. 4 illustrates an example of a query response containing a phonenumber;

FIG. 5 illustrates an example of a query response containing an emailaddress;

FIG. 6 illustrates an example of a query response when a user is notauthorized to receive the answer;

FIG. 7 illustrates an example method embodiment;

FIG. 8 illustrates an example computer system;

FIG. 9 illustrates an example of a query response containing a phonenumber; and

FIG. 10 illustrates an example of a query response containing an emailaddress.

DETAILED DESCRIPTION

Various embodiments of the disclosure are described in detail below.While specific implementations are described, it should be understoodthat this is done for illustration purposes only. Other components andconfigurations may be used without parting from the spirit and scope ofthe disclosure.

One exemplary, non-limiting, solution to the technical problem notedabove is, upon receiving authorization for a user to receive the queriedinformation, to implement a machine learning algorithm to complete aresponse template with restricted data associated with the query.Parsing the query into speech components (e.g., nouns, verbs, adverbs,adjectives, etc.) can occur using a natural language processingalgorithm. The speech components can then be processed using a trainedmachine-learning classifier, which can identify the subject and/ordomain of the query. In some examples, the trained machine-learningclassifier may be logistic regression, naïve bayes, multi-layerperceptron, neural network, etc. Based on the subject and/or domain, thesystem can determine what database(s) contains the information beingrequested. The system can then determine if the requestor requesting therespective information has authorization to access the identifieddatabase. If there is authorization, the system can obtain therestricted data from the restricted database, then use a responsetemplate to generate an assertion response. Finally, the system canexecute a comprehension model/algorithm on the generated assertionresponse, ensuring that the response generated will provide thecomprehendible information. If the comprehension model provides a scoreabove a pre-determined threshold, the generated response is provided tothe requestor.

Consider the following example involving a chatbot. A chatbot is awindow within a computer operating system or webpage which provides aconversation using auditory or textual methods. While the chatbot givesthe appearance that another user is providing answers to the user'squeries, in reality there may be a computer generating the responses. Inthis example, a user is an employee of an organization, and wants todetermine the phone number for another employee of the organization. Theuser has already logged into the employer's network, and therefore has auser identification (user ID) already established before generating aquery.

The user enters a textual query of “What is Sally's phone number?” intothe chatbot. The chatbot receives the query and executes naturallanguage processing on the text. The natural language processingidentifies “Sally” as a named entity, and the system compares “Sally” toknown names within a personnel database. This comparison to known namescan occur, by example, through a trained neural network which identifiespotential individuals matching the query using each subsequent letter inan iterative fashion. For example, there could be five hundredindividuals within the organization whose names start with “S,” threehundred with “Sa,” but only two with the entirety of “Sally.” In someexamples, the neural network can use several features in order tocharacterize a name. For example, features such as a word starting withUpper case, includes a particular combination of letters, etc. may beused. The deep nets may basically “learn” which features may beimportant for tagging based on the dataset provided, for example,depending on the examples that exist on the database—Latin names,European names, etc.

In this case, the system has identified multiple individuals named“Sally” and presents a disambiguation question to the user, such as “Doyou mean Sally X or Sally Y?” The user provides a disambiguation inputto the system (“I mean Sally X”), and the system, using a trainedmachine-learning classifier, uses the remainder of the parsed query withthe disambiguation input to determine an identified subject, domain, orcontext of the query. In one example, a sample dataset with examplephrases for each domain (e.g. What is my salary? (PAYROLL) What is mycompensation (PAYROLL)? What is my e-mail (GENERAL)? What is my medicalplan (BENEFITS)?) may be provided. The neural network may basicallylearn the distribution of the tokens for each domain, and then mayprovide the probability of a new phrase to be part of each domaindistribution For example, the machine-learning classifier can be basedon logistic regression with TF-IDF (term frequency-inverse documentfrequency) features, or multi-layer perceptron. Based on the identifiedsubject/domain/context, the system can identify one or more databaseswhich contain information for identified subject/domain/context. Thesystem can then determine if the user ID of the user is authorized toaccess the respective database.

Authorization to retrieve the restricted data, or otherwise access therestricted database can be obtained, for example, by using the user ID,then comparing that ID to a list of authorized users. In someconfigurations, additional points of verification/authorization may berequired to confirm the identity of the user, such as passwords, usernames, biometric (including, but not limited to fingerprint, retinal,voice, and facial recognition), etc. In one exemplary use case, GraphQLis used to retrieve user information. Once the user information isretrieved. an API may provide an entitlement/authentication servicebased on user role (that is defined in a database).

Upon retrieving the data from the restricted database, the system canuse that data to complete, or otherwise fill in, a previously-generatedresponse template. The response template can be selected based on thecontext or domain of the query. Templates may be proposed based onanticipated inquiries. Templates with assertions may be provided foreach domain. The templates may be pre-defined based on the specificimplementation, such as the information need for the application. Forexample, all queries for a phone number can use a first common template,and all queries for addresses can use a second common template. In thiscase, the system obtains Sally's phone number from the database andenters that number into the template.

Another exemplary embodiment provides additional flexibility in terms ofinput components to be used. In this example, when the assertions arebuilt a GUID (global unique identifier) is included as the response tothe assertion. An example follows:

Template “I am Roberto Silveira. Roberto Silveira email information is35df4764. Roberto Silveira's phone contact information is 3289eb54.Roberto Silveira's work business address information is ef2454aa.Roberto Silveira's home address is 5c8fb035.” Dictionary with keys { “3289eb54”: {   “entitlement”: true,   “input_component”:“PlainTextMessage”,   “key_values”: {    “Business Landline Number”:“+2312312”,    “Business Mobile Number”: “+2312312”,    “Personal PhoneNumber”: “+231231231”   },   “text”: “Here's the phone information yourequested for Roberto Si lveira:”  },  “35df4764”: {   “entitlement”:true,   “input_component”: “PlainTextMessage”,   “key_values”: {   “Business email”: “roberto.silveira@adp.com”,    “Personal email”:“rsilveira79@gmail.com”   },   “text”: “Here's the email information yourequested for Roberto Si lveira:”  },  “5c8fb035”: {   “entitlement”:true,   “input_component”: “AddressDisplay”,   “text”: “Rua Marques doPombal 55/33”  },  “ef2454aa”: {   “entitlement”: true,  “input_component”: “AddressDisplay”,   “text”: “Rua Soledade 550, ADP” } }

This GUID (e.g. 35df4764) may be used as a key to a separate object,that contains a reply to this question and also some other contextualinformation (such as type of controller to be used, entitlement for thisspecific assertion, external links, internationalization information,and so on).

This new construct can allow complex answers to be built, as shown inFIGS. 9 and 10 . In some cases, this can be an additional method ofbuilding the assertion, with the initial method to include the stringitself, e.g. “Chandar phone number is +19737798483”.

In some configurations, prior to sending the completed template to theuser as a response, the system can then execute a comprehensionmodel/analysis on the completed template. The comprehensionmodel/analysis reviews the proposed response, scores it forcomprehension and usability, and generates a probability of each tokenin the assertion template to be part of the response (comprehensionscore). Only if the comprehension score is above a threshold amount doesthe system send the completed template to the user as a response. Thus,embodiments ensure a computer system can provide a response that iscomprehensible to people. If the comprehension score is not above thethreshold amount, the system can retrieve another template and completeit with the retrieved data, attempt to correct the errors found in thecurrent completed template, and/or inform the user that the dataretrieved cannot be presented due to formatting issues. As an example ofcorrecting a completed template, the response to the query for Sally'sphone number may result in “Sally's phone number is 555-5555.” However,the user making the query is in the United Kingdom, and needsinternational and area dialing codes. The system can then correct theresponse to the query to read “Sally's phone number is 01-555-5555.” Inthis manner, the location and/or other characteristics (age,demographic, language, country, etc.) of the user generating the querycan be used when determining if the query response is comprehensible.

Queries can be generated using text (such as the chatbot describedabove) and/or speech which is then converted to text usingspeech-to-text processing algorithms. Such speech-to-text algorithms maybe executed on one or more processors specifically configured to receiveaudio data and convert it to text. These processors may or may not bethe same processors which then perform natural language processing onthe resulting text of the query.

Identifying names, or proper nouns, within the query can occur usingconditional random fields (CRF); neural networks, such as named entityrecognition (NER), using pretrained language models such as BERT(Bidirectional Encoder Representations from Transformers). In order toimprove the accuracy of the language models being used, and allow forbetter detection when users present their query using all lowercaseletters, the model can be fined tuned to include all the entities (legalformatted name, given name, family name, nicknames) that are provided bythe client database. In addition, the system can detect if the questionwas related to a self-entity (e.g., “my,” “myself,” “mine; for example,“What is my corporate email?), and then pass this information on to thenext steps.

The machine comprehension model receives the query (preferably with thenamed entities components identified) and facts obtained from therestricted database, then provides as output probabilities regardingwhich facts provided to the model are most probable to be part of theanswer to the query. In some configurations, these probabilities can beassociated with tokens associated with the respective facts. Inaddition, the output of the model can remove special formattingassociated with the inputs, such as #a # for address, #p # for phone, #u# for unauthorized, etc., and provide the output with proper formattingfor the user interface.

In exemplary embodiments, a category of models that is named “machinecomprehension” may be used. Both question and facts are converted to avector space (embeddings) and then a mechanism of attention from thequestion to the facts is used to predict the probability (logits) ofeach token to be part of the reply. The primary dataset to train thesecategory of models may be SQuAD (1.0 and 2.0—more details herehttps://rajpurkar.github.io/SQuAD-explorer/). Other datasets may also beused depending on implementation details (e.g. NewsQA, SWAG)—moredetails here: http://nlpprogress.com/english/question_answering.html

The description now turns to the figures for additional examples andexplanation.

FIG. 1 illustrates an example of query entry. As illustrated, FIG. 1illustrates how the message 102 arrives. In this example, the user isinteracting with an e-chat 104, such as the chatbot described above. Thee-chat 104 is able to detect user “intent,” or commands that the user isasking the system to make. One exemplary command or intent is“question.detect,” and in such instances the system determines that theuser is intending to ask a question to the system (rather than executingother business through the chat window). Once the query 102 in thee-chat 104, it is forwarded to query processing 106. Also at this stage,the system can collect information about the user that is using the chatwindow. For example, user identification can be collected (if notpreviously obtained). In some configurations, the system can generate anauthorization token, which will be combined with the message and passedonto additional portions of the query response system. The token can,for example, contain the user ID as well as information about therespective authorizations that the user associated with the user ID has.The token may be just one ID of the user. The token may be used by theauthorization/entitlement API to check if this user will be able toaccess a given piece of information.

FIG. 2 illustrates an example algorithm for responding to a text query.As illustrated, the query 202 is received, and named entity detection204 occurs on the query. The named entity detection can include, forexample, natural language processing to identify for each word in thequery its corresponding type of speech component (that is, the systemparses the query). If necessary, the system can perform a personneldisambiguation 206. For example, if multiple individuals with a samename are present, the system can request that the user identify whichindividual is meant. Likewise, if there are other proper nouns withinthe query, which are not directed to people, the system may requiredisambiguation for those other proper nouns as well.

The system then uses a domain classification model 208 on the parsed,disambiguated speech to identify the domain and/or context of the query.Once the domain/context is determined, the system determines if the userwhich originated the query 202 is authorized and entitled 210 to receivethe answer to the query. If so, the system retrieves facts associatedwith the query and fills in a response template 212 using thoseretrieved facts. The completed template is then analyzed by a machinecomprehension model 214 and, if the prepared response meets a minimumlevel (threshold) of readability, the response is sent to the user as aresponse to the text query 216.

FIG. 3 illustrates an example of a query response containing a map.Because the query 302 illustrated is requesting an address, the systemcan prepare a response 304 which contains both the address requested aswell as a map of the address. In some configurations, the map can begenerated by the system, whereas in other configurations the map can begenerated by a third party (such as GOOGLE MAPS), and the system canforward the map generated by the third party as part of the response

FIG. 4 illustrates an example of a query response containing a phonenumber. In this example, the query 402 is requesting a phone number. Thesystem can respond with a response which contains two portions: a first(template) portion 404 which includes text prepared in response to thequery, and a second portion 406 which is the telephone number. In someconfigurations, as the user clicks on the telephone number within thesecond portion 406 of the response, the system can cause a phone call tobe initiated to the displayed phone number.

FIG. 5 illustrates an example of a query response containing an emailaddress. In this example, the query 502 requests an email address, andthe response has two portions: a first (template) portion 504 setting upthe response, and a second portion 506 containing the email addressrequested. In some configurations, as the user clicks on the emailaddress within the second portion 506, the system can initiate an emailfrom the computer system.

FIG. 6 illustrates an example of a query response when a user is notauthorized to receive the answer. As illustrated, the user generates aquery 602, however in this case the user is requesting someone else'ssalary, which may have privacy or other restrictions in place. Thesystem can check to see if the user generating the query is authorizedand, upon determining that the user is not authorized, generate aresponse 604 indicating that the user lacks that authorization.

FIG. 7 illustrates an example method embodiment. As illustrated, thesystem can identify, at a processor, an identity of a user (702) andreceive a text query from the user (704). In some cases, the text querycan be a spoken query which is converted to text by a speech-to-textalgorithm. The system can then identify, via the processor executing aneural network, at least one named entity within the text query (706).The system can then retrieve, via the processor from a personneldatabase, a plurality of identities associated with the at least onenamed entity (708), and (if needed), receive from the user, adisambiguation input identifying a selected entity from the plurality ofidentities (710). The system can then parse, via the processor executinga trained machine-learning classifier, the text query, resulting in atleast one of an identified subject or an identified domain of the textquery (712).

The system can authorize the user, via the processor and based on theidentity of the user and the at least one of the identified subject orthe identified domain, to access a restricted database containingrestricted data associated with the at least one of the identifiedsubject or the identified domain (714) and, with that authorization,retrieve, via the processor, a response template specific to the atleast one of the identified subject or the identified domain (716). Thesystem can then fill, via the processor accessing the restricteddatabase, the response template with at least a portion of therestricted data associated with the at least one of the identifiedsubject or the identified domain, resulting in a filled responsetemplate (718). Next, the system can determine, via the processorexecuting a machine comprehension model on the filled response template,a probable readability of at least a portion of the filled responsetemplate (720) and, upon identifying that the probable readability isabove a threshold, replying to the text query with the at least aportion of the filled response template (722).

In some configurations, the neural network can be pretrained to identifyproper nouns within the text query.

In some configurations, the trained machine-learning classifier caniteratively modify code executed by the processor upon receiving athreshold number of text queries. In such configurations, the trainedmachine-learning classifier can use logistic regression betweeniterations to identify which aspects of the code to modify.

In some configurations, the illustrated method can be augmented tofurther include: removing portions of the filled response template whichare not associated with the at least one of the identified subject orthe identified domain, resulting in the at least a portion of the filledresponse template.

In some configurations, the text query of the user can be received as aspeech query and converted, by the processor executing a speech-to-textconversion, the speech query into the text query.

In some configurations, the at least one named entity within the textquery can include at least one of a legal formatted name, a given name,a family name, and a nickname.

With reference to FIG. 8 , an exemplary system includes ageneral-purpose computing device 800, including a processing unit (CPUor processor) 820 and a system bus 810 that couples various systemcomponents including the system memory 830 such as read-only memory(ROM) 840 and random access memory (RAM) 850 to the processor 820. Thesystem 800 can include a cache of high-speed memory connected directlywith, in close proximity to, or integrated as part of the processor 820.The system 800 copies data from the memory 830 and/or the storage device860 to the cache for quick access by the processor 820. In this way, thecache provides a performance boost that avoids processor 820 delayswhile waiting for data. These and other modules can control or beconfigured to control the processor 820 to perform various actions.Other system memory 830 may be available for use as well. The memory 830can include multiple different types of memory with differentperformance characteristics. It can be appreciated that the disclosuremay operate on a computing device 800 with more than one processor 820or on a group or cluster of computing devices networked together toprovide greater processing capability. The processor 820 can include anygeneral purpose processor and a hardware module or software module, suchas module 1 862, module 2 864, and module 3 866 stored in storage device860, configured to control the processor 820 as well as aspecial-purpose processor where software instructions are incorporatedinto the actual processor design. The processor 820 may essentially be acompletely self-contained computing system, containing multiple cores orprocessors, a bus, memory controller, cache, etc. A multi-core processormay be symmetric or asymmetric.

The system bus 810 may be any of several types of bus structuresincluding a memory bus or memory controller, a peripheral bus, and alocal bus using any of a variety of bus architectures. A basicinput/output (BIOS) stored in ROM 840 or the like, may provide the basicroutine that helps to transfer information between elements within thecomputing device 800, such as during start-up. The computing device 800further includes storage devices 860 such as a hard disk drive, amagnetic disk drive, an optical disk drive, tape drive or the like. Thestorage device 860 can include software modules 862, 864, 866 forcontrolling the processor 820. Other hardware or software modules arecontemplated. The storage device 860 is connected to the system bus 810by a drive interface. The drives and the associated computer-readablestorage media provide nonvolatile storage of computer-readableinstructions, data structures, program modules and other data for thecomputing device 800. In one aspect, a hardware module that performs aparticular function includes the software component stored in a tangiblecomputer-readable storage medium in connection with the necessaryhardware components, such as the processor 820, bus 810, display 870,and so forth, to carry out the function. In another aspect, the systemcan use a processor and computer-readable storage medium to storeinstructions which, when executed by the processor, cause the processorto perform a method or other specific actions. The basic components andappropriate variations are contemplated depending on the type of device,such as whether the device 800 is a small, handheld computing device, adesktop computer, or a computer server.

Although the exemplary embodiment described herein employs the hard disk860, other types of computer-readable media which can store data thatare accessible by a computer, such as magnetic cassettes, flash memorycards, digital versatile disks, cartridges, random access memories(RAMs) 850, and read-only memory (ROM) 840, may also be used in theexemplary operating environment. Tangible computer-readable storagemedia, computer-readable storage devices, or computer-readable memorydevices, expressly exclude media such as transitory waves, energy,carrier signals, electromagnetic waves, and signals per se.

To enable user interaction with the computing device 800, an inputdevice 890 represents any number of input mechanisms, such as amicrophone for speech, a touch-sensitive screen for gesture or graphicalinput, keyboard, mouse, motion input, speech and so forth. An outputdevice 870 can also be one or more of a number of output mechanismsknown to those of skill in the art. In some instances, multimodalsystems enable a user to provide multiple types of input to communicatewith the computing device 800. The communications interface 880generally governs and manages the user input and system output. There isno restriction on operating on any particular hardware arrangement andtherefore the basic features here may easily be substituted for improvedhardware or firmware arrangements as they are developed.

Use of language such as “at least one of X, Y, and Z,” “at least one ofX, Y, or Z,” “at least one or more of X, Y, and Z,” “at least one ormore of X, Y, or Z,” “at least one or more of X, Y, and/or Z,” or “atleast one of X, Y, and/or Z,” are intended to be inclusive of both asingle item (e.g., just X, or just Y, or just Z) and multiple items(e.g., {X and Y}, {X and Z}, {Y and Z}, or {X, Y, and Z}). The phrase“at least one of” and similar phrases are not intended to convey arequirement that each possible item must be present, although eachpossible item may be present.

The various embodiments described above are provided by way ofillustration only and should not be construed to limit the scope of thedisclosure. Various modifications and changes may be made to theprinciples described herein without following the example embodimentsand applications illustrated and described herein, and without departingfrom the spirit and scope of the disclosure.

The invention claimed is:
 1. A method comprising: parsing, via at leastone processor executing a trained machine-learning classifier, a textquery, resulting in an identified subject of the text query; authorizinga user, via the at least one processor and based on an identity of theuser and the identified subject, to access a restricted databasecontaining restricted data associated with the identified subject;retrieving, via the at least one processor, a response template specificto the identified subject; filling, via the at least one processoraccessing the restricted database, the response template with at least aportion of the restricted data associated with the identified subject,resulting in a filled response template; removing, via the at least oneprocessor, portions of the filled response template which are notassociated with the identified subject, resulting in at least a portionof the filled response template; and replying, via the at least oneprocessor, to the text query with the at least a portion of the filledresponse template.
 2. The method of claim 1, wherein the trainedmachine-learning classifier iteratively modifies code executed by the atleast one processor upon receiving a threshold number of text queries.3. The method of claim 2, wherein the trained machine-learningclassifier uses logistic regression between iterations to identify whichaspects of the code to modify.
 4. The method of claim 1, wherein theresponse template includes an identifier associated with the portion ofthe restricted data, and further comprising: matching the identifierwith a key to the restricted database to retrieve data corresponding tothe identifier, and filling the response template with the data.
 5. Themethod of claim 1, wherein the text query is: received as a speechquery; and converted, by the at least one processor executing aspeech-to-text conversion, the speech query into the text query.
 6. Themethod of claim 1, wherein the identity of the user identifies at leastone of a job title and a clearance level.
 7. The method of claim 1,wherein the restricted data comprises salary information of otherindividuals.
 8. A system comprising: at least one processor; and acomputer-readable storage medium having instructions stored which, whenexecuted by the at least one processor, cause the at least one processorto perform operations comprising: parsing, by executing a trainedmachine-learning classifier, a text query, resulting in an identifiedsubject of the text query; authorizing a user, based on an identity ofthe user and the identified subject, to access a restricted databasecontaining restricted data associated with the identified subject;retrieving a response template specific to the identified subject;filling, by accessing the restricted database, the response templatewith at least a portion of the restricted data associated with theidentified subject, resulting in a filled response template; removingportions of the filled response template which are not associated withthe identified subject, resulting in at least a portion of the filledresponse template; and replying to the text query with the at least aportion of the filled response template.
 9. The system of claim 8,wherein the trained machine-learning classifier iteratively modifiescode executed by the at least one processor upon receiving a thresholdnumber of text queries.
 10. The system of claim 9, wherein the trainedmachine-learning classifier uses logistic regression between iterationsto identify which aspects of the code to modify.
 11. The system of claim8, wherein the response template includes an identifier associated withthe portion of the restricted data, and further comprising: matching theidentifier with a key to the restricted database to retrieve datacorresponding to the identifier, and filling the response template withthe data.
 12. The system of claim 8, wherein the text query is: receivedas a speech query; and converted, by the at least one processorexecuting a speech-to-text conversion, the speech query into the textquery.
 13. The system of claim 8, wherein the identity of the useridentifies at least one of a job title and a clearance level.
 14. Thesystem of claim 8, wherein the restricted data comprises salaryinformation of other individuals.
 15. A non-transitory computer-readablestorage medium having instructions stored which, when executed by atleast one processor, cause the at least one processor to performoperations comprising: parsing, by executing a trained machine-learningclassifier, a text query, resulting in an identified subject of the textquery; authorizing a user, based on an identity of the user and theidentified subject, to access a restricted database containingrestricted data associated with the identified subject; retrieving aresponse template specific to the identified subject; filling, byaccessing the restricted database, the response template with at least aportion of the restricted data associated with the identified subject,resulting in a filled response template; removing portions of the filledresponse template which are not associated with the identified subject,resulting in at least a portion of the filled response template; andreplying to the text query with the at least a portion of the filledresponse template.
 16. The non-transitory computer-readable storagemedium of claim 15, wherein the trained machine-learning classifieriteratively modifies code executed by the at least one processor uponreceiving a threshold number of text queries.
 17. The non-transitorycomputer-readable storage medium of claim 16, wherein the trainedmachine-learning classifier uses logistic regression between iterationsto identify which aspects of the code to modify.
 18. The non-transitorycomputer-readable storage medium of claim 15, wherein the responsetemplate includes an identifier associated with the portion of therestricted data, and further comprising: matching the identifier with akey to the restricted database to retrieve data corresponding to theidentifier, and filling the response template with the data.
 19. Thenon-transitory computer-readable storage medium of claim 15, wherein thetext query is: received as a speech query; and converted, by executing aspeech-to-text conversion, the speech query into the text query.
 20. Thenon-transitory computer-readable storage medium of claim 15, wherein theidentity of the user identifies at least one of a job title and aclearance level.